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ADA4255ACPZ-R7 データシート(PDF) 5 Page - Analog Devices |
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ADA4255ACPZ-R7 データシート(HTML) 5 Page - Analog Devices |
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5 / 64 page  Data Sheet ADA4255 SPECIFICATIONS analog.com Rev. 0 | 5 of 64 Table 1. Parameter Test Conditions/Comments Min Typ Max Unit NOISE Total Noise, RTI = eni2+ enoGain 2 Voltage Noise, 1 kHz, RTI Input Noise (eni) 17 nV/√Hz Output Noise (eno) 253 nV/√Hz 0.1 Hz to 10 Hz, RTI G = 1/16 V/V 95 μV p-p G = 1 V/V 5.75 μV p-p G = 128 V/V 330 nV p-p 0.01 Hz to 10 Hz, RTI G = 1/16 V/V 100 μV p-p G = 1 V/V 6.8 μV p-p G = 128 V/V 395 nV p-p Current Noise 10 Hz 100 fA/√Hz 0.1 Hz to 10 Hz 3.1 pA p-p 0.01 Hz to 10 Hz 4 pA p-p INPUT CHARACTERISTICS Input Bias Current ±0.45 ±1.5 nA TA = −40°C to +85°C1 ±4 nA TA = −40°C to +105°C1 ±14 nA Input Offset Current ±0.2 ±1.3 nA TA = −40°C to +85°C1 ±2.5 nA TA = −40°C to +105°C1 ±3.5 nA Input Impedance Common mode >1||11 GΩ||pF Differential >1||4.7 GΩ||pF Input Operating Voltage Range Guaranteed by CMRR VSSH + 3 VDDH − 3 V MUX_OVER_VOLT_ERR Any input Positive Threshold VDDH − 0.9 V Negative Threshold VSSH + 0.9 V INPUT_ERR/G_RST Selected input, Common-mode applied Positive Threshold VDDH − 1.5 V Negative Threshold VSSH + 1.5 V Switch Ax and Switch Bx Resistance See Figure 86 for additional information 560 Ω Switch D12 Resistance See Figure 86 for additional information 4.05 kΩ ANALOG OUTPUTS Output Voltage Swing from Each Rail AVDD = 5 V, load resistor (RL) = 2.49 kΩ to 2.5 V AVSS + 0.06 AVDD − 0.08 V AVDD = 2.7 V, RL = 1.8 kΩ to 1.35 V AVSS + 0.05 AVDD − 0.06 V Capacitive Load Drive 500 pF Short-Circuit Current To 2.5 V, G = 1.375, AVDD = 2.7 V to 5 V 3.5 11 25 mA OUTPUT_ERR Positive Threshold AVDD − 0.03 V Negative Threshold AVSS + 0.03 V VOCM DYNAMIC PERFORMANCE −3 dB Bandwidth 2.3 MHz Slew Rate 1.9 V/μs Voltage Noise Frequency = 1 kHz 160 nV/√Hz Gain 1 V/V |
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